• Title/Summary/Keyword: 소재 정보

Search Result 1,720, Processing Time 0.032 seconds

Review and Prospects on Venture Firm Accumulation Center: The Case of Kwan-Ak Venture Town (벤처기업집적시설의 현황과 문제점 및 개선방안에 관한 연구 서울시 관악구 벤처타운 사례를 중심으로)

  • 최지훈
    • Journal of the Economic Geographical Society of Korea
    • /
    • v.3 no.2
    • /
    • pp.81-96
    • /
    • 2000
  • The study examines the present condition and prospects of venture firm accumulation center in the case of kwan-ak venture town. The survey shows most of companies have been founded since 1997. Their major items are software development and the average employees are under 10 workers. According to the questionary about the type of R&D and the level of innovation, technology innovation such as the development of new product is advanced whereas tacit innovation like inter-firm cooperation is very weak. And the source of idea and information is concentrated on the within-firms and research center As a result of the analysis of regional linkage, the dependence of production and R & D is large on kwan-ak-gu, but sales and information services have emphasis on Seoul area. In the light of the affiliation of inter-firm, they response sympathy with cooperation, but could not strengthen their commercial ties yet. At last, the policy for venture firm accumulation center must intend to make tacit measures through inventing of system instead of the simple means such as the assistance of location, finance and tax.

  • PDF

Parenting Stress in Mothers of Premature Infants (미숙아를 출산한 어머니의 양육스트레스)

  • Hwang, Hyun-Sook;Kim, Hee-Soon;Yoo, Il-Young;Shin, Hyun-Sook
    • Child Health Nursing Research
    • /
    • v.19 no.1
    • /
    • pp.39-48
    • /
    • 2013
  • Purpose: The purposes of this study were to assess the parenting stress in mothers of premature infants and stress related characteristics of mothers and infants. Methods: The methodology was a cross sectional survey study using self-report questionnaires. Participants in this study were 36 mothers of infants with corrected ages of 4 months to 12 months who were born prematurely. Data were analyzed using t-test, ANOVA, and Pearson correlation with the SPSS WIN 19.0 program. Results: The mean score for parenting stress in mothers of premature infants was $74.639{\pm}17.570$, indicating that the mothers actually experienced stress. When mothers were able to have some private time, parenting stress was statistically significantly lower. When the residential status was having one's own house and the local community provided informational support regarding child nurturing, there was a statistically significant decrease in the sub-category of particular infant temperament. There was a statistically significant positive correlation between mothers' depression and parenting stress. Conclusion: These results indicate that there is a need for nursing interventions to increase mothers' private time and to include informational support regarding health management of children including developmental status assessment from local communities.

Saponin Composition and Physico-Chemical Properties of Korean Red Ginseng Extract as Affected by Extracting Conditions (추출조건에 따른 홍삼추출액의 사포닌 조성 및 이화학적 특성)

  • Lee, Seung-Ho;Kang, Jung-IL;Lee, Sang-Yun
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.37 no.2
    • /
    • pp.256-260
    • /
    • 2008
  • In this study, the composition of saponin and physico-chemical properties of Korean red ginseng extract was analyzed based on various extracting conditions. The total saponin and individual ginsenoside concentration of the red ginseng extract showed a decreasing trend as the extracting temperature and time increased; also, the extracting condition at $75^{\circ}C$ for 24 hours showed the highest concentration. In contrast, the concentration of $Rg_3$ increased as the extracting temperature and time increased within the particular range. It was suggested that a certain part of ginsenosides changes to $Rg_3$ according to extracting conditions; thus, the concentration of $Rg_3$ increased. Physico-chemical properties of Korean red ginseng extract based on the extracting conditions were different compared to those for saponin; so, as the extracting temperature and time increased, brix and color difference increased but pH decreased indicating stabilization of the overall quality of the product. Therefore, the most appropriate extracting condition for both the product quality of Korean red ginseng extract and stable extraction of saponin was $80^{\circ}C$ within 48 hours, minimizing the loss of ginsenosides.

Evaluation of image quality for metal artifact using protocol parameters in the MRI (자기공명영상에서 프로토콜 변화를 이용한 금속인공물의 영상평가)

  • Lee, Su-Hyun;Kim, Do-Gyoung;Kim, Yo-Han;Yeum, Hyei-Jeong;Lee, Heon-Jun;Lim, Ju-Yeon;Choi, Woo-Jeon;Kim, Dong-hyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2015.10a
    • /
    • pp.582-585
    • /
    • 2015
  • In the aging society, TKRA is steadily increased because of joint diseases. Artificial joint used in TKRA generates metal artifacts in the MRI. Metal artifact may affect diagnosis. In study, We are going to minimize the effect of metal artifact to improve the value of diagnosis by changing the sequence and the type of artificial joint(Co-Cr, Ni-Ti). 1.5T AVANTO, plastic containers and each of the artificial joint (Normal, Co-Cr, NiTi) were used. After the artificial joints fixed in a paper cup was inserted in a plastic container of cylindrical, Signal intensity was measured. To obtain strong and uniform signal intensity, the plastic container was filled with water. We changed Sequences(T1 TSE, T2 TSE, PD TSE) and obtained an Axial image. After excepting the maximum and minimum values, We calculated the average of SNR, CNR and PSNR. Consequently, The SNR, CNR value of PD TSE are measured higher than these of T1 TSE, T2 TSE and The PSNR of Co-Cr is higher than this of Ni-Ti. The SNR of Co-Cr is similar to the SNR of normal comparing this of Ni-Ti. As a result, Using sequence of PD Tse and Co-Cr alloy is considered to be useful.

  • PDF

A Study on the Effectiveness Analysis of Freeway Traffic Management Strategy Based on exTMS (exTMS기반의 고속도로 교통관리방안 효과분석에 관한 연구)

  • Sung, Ji-Na;So, Jae-Hyun;Oh, Young-Tae
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.8 no.5
    • /
    • pp.38-47
    • /
    • 2009
  • This paper aims to evaluate the freeway traffic management Strategy based on exTMS according to traffic situation of freeway. As freeway user's demands increase, we thus need future-oriented and optimized traffic management. So, through improving the existing system and introducing the advanced system, these systems evaluate for not only preparing the application in real world but also preliminary feasibility. To evaluate effects of the traffic management based on exTMS, in this study, shoulder LCS, advanced VMS(assumption in it is improving next-generation system which it can be offering diverse dynamic traffic information), Ramp-metering system are applicated in simulation. In addition, this study evaluates the effect when all proposed systems are applicated, and compare the individual effect of when independent system is applicated, through considering about traffic condition of V/C=0.5, V/C=0.8, V/C=1.2. The study results show that all assumed cases, the travel speed were improved according to the increasing V/C. Furthermore, the results of evaluated the individual system show that the shoulder LCS was found to be the largest effect, and the effect of VMS(detour rate is 11%) is larger than the other cases.

  • PDF

Change of Meaning for the May 18 Democratic Movement from the Perspectives of the Memorial Projects Focusing on a Holy Ground for Democracy, a Cultural City and a Human Rights City (기념사업으로 본 '5·18'의 의미 변용 민주성지, 문화도시, 인권도시를 중심으로)

  • Jung, Ho-Gi
    • Korean journal of communication and information
    • /
    • v.71
    • /
    • pp.52-74
    • /
    • 2015
  • The May 18 Democratic Movement has been considered to be specific case of the big deviation in social memory among the events that occurred after the Korea War. Compared with other events associated with the democratization movement, the May 18 Democratic Movement is special in that can be achieved various changed meaning. In this study, primary focus will be on the background and logics to show what changed the meaning of the May 18 Democratic Movement from the perspectives of the memorial project. And to investigate influences of change of meaning on perspectives and forms of memorial projects. Recognition and forms of memorial projects on the May 18 Democratic Movement had been largely changed around 2000s. Memorial projects were the aspects that are the logics of the social movements absorbed into the logics of the institutionalization before 2000s. During this period, it was done primarily the discourse of a holy ground for democracy and sanctuarization, had characterized the nature of the struggle of memory. After 2000s, the May 18 Democratic Movement has been interpreted historical resources to create a cultural city and a human rights city. Sometimes the May 18 Democratic Movement was appropriated by local development discourse, and sometimes was adopted as the material of differentiation strategy in the city. Form of memorial projects has also been changed type of struggle of memory to type of heritage industry.

  • PDF

History as Media Narrative and Representation of Collective Memory Focusing on the Prime-time Television News Reports Related with the May 18 Democratic Movement (매체 서사로서의 역사와 집합기억의 재현 5·18 민주화운동 관련 지상파방송 뉴스를 중심으로)

  • Joo, Jaewon
    • Korean journal of communication and information
    • /
    • v.71
    • /
    • pp.9-32
    • /
    • 2015
  • The media, traditionally, serves to reinforce one's limited memory and transform those personal memories of society's members into collective memories. Notably, the mass media collects countless pieces of personalized memories for the creation of collective memories. Through the process of recollecting as well as recreating the past in the present, mass media exerts influence on the means the public appreciates and understands the history. Although numerous new medias like Internet overflows in today's society, television continues to stand firm as the salient means to construct the memories in daily lives. In this context, the research aims to analyze the televised news as the principal agent of memory producer to determine through which memories it recreates the $5{\cdot}18$ in today's media. The analysis of news values clarifies that every government placed distinctive news values on $5{\cdot}18$ within its historical context. Even so, such values were often fixed based on its relations to the existing political issues. Furthermore, through the discourse analysis, this research concludes that today's coverage of $5{\cdot}18$ is softening and becoming conventional.

  • PDF

Factors Influencing Maternal Support for Physical Activity of Preschool Children (학령전기 아동 어머니의 아동 신체활동 지지)

  • Ra, Jin Suk;Chae, Sun-Mi
    • Child Health Nursing Research
    • /
    • v.20 no.1
    • /
    • pp.30-38
    • /
    • 2014
  • Purpose: The purpose of this study was to explore maternal physical activity support for preschool children. Methods: Survey methodology using a self-administered questionnaire was employed. Mothers with preschool children from a daycare center in Daejeon participated in the study. One hundred and fifty-six questionnaires were analyzed. Results: Mothers with preschool children showed a moderate level of physical activity support for their children. Significant factors affecting physical activity support of mothers were monthly household income (${\beta}$=.417, p=.002), maternal self-efficacy for physical activity support (${\beta}$=.231, p=.003), information for physical activity support (${\beta}$=.173, p=.022), and experience of education about physical activity support (${\beta}$=.237, p=.002). These variables explained 26.4% of the variance in physical activity support (F=7.628, p<.001). Conclusion: To improve maternal support for increasing physical activity of preschool children, maternal education and appropriate information should be provided to improve self-efficacy for physical activity support.

Quantitative analysis of water-soluble vitamins and polyphenolic compounds in tomato varieties (Solanum lycopersicum L.) (토마토(Solanum lycopersicum L.) 품종 간 수용성 비타민과 폴리페놀계 성분 함량 변이 분석)

  • Kim, Daen;Son, Beunggu;Choi, Youngwhan;Kang, Jumsoon;Lee, Yongjae;Je, Beungil;Park, Younghoon
    • Journal of Plant Biotechnology
    • /
    • v.47 no.1
    • /
    • pp.78-89
    • /
    • 2020
  • Tomato fruit quality is determined by the contents of various functional metabolites in addition to fruit appearance. To develop tomato cultivars with higher amounts of functional compounds, an efficient quantification method is required to identify the natural variations in the compounds in the tomato germplasm. In this study, we investigated tomato varieties, which included 23 inbred lines and 12 commercial F1 cultivars, for their contents of seven watersoluble vitamins (vitamin C, vitamins B1, B2, B3, B5, B6, and B9) and five polyphenolic compounds (quercetin, rutin, kaempferol, myricetin, and naringenin chalcone). The results of high performance liquid chromatography and liquid chromatography-mass spectrometry showed that vitamin C and naringenin chalcone were the major water-soluble vitamins and polyphenolic compounds, respectively, and their abundance was highly variable depending on the cultivar. By contrast, the contents of vitamin B1, quercetin, and kaempferol were lowest among the cultivars. With regard to the relationship between metabolic compounds and fruit characteristics, a significant association was found in fruit size, indicating that cherry tomato varieties contain higher amounts of the compounds compared to large fresh-type varieties. However, no direct association was detected in fruit color, except for naringenin chalcone. The results of this study provide new insights on the quantification of metabolic compounds and the selection of breeding materials, which are prerequisites for the development of functional tomato varieties.

Analysis of the Differences Among Core Competency of Collegiate and Career Preparation Behavior, Career Decision-Making Self-Efficacy, Career Barriers (대학생 핵심역량에 따른 진로준비행동 및 진로결정 자기효능감, 진로장벽의 차이 분석)

  • Ha, Jungyoun;Kim, Jeongmin;Kang, Jiyeon;Cha, Jicheol
    • The Journal of the Korea Contents Association
    • /
    • v.17 no.5
    • /
    • pp.80-89
    • /
    • 2017
  • This study aims to get necessary information for designing the systematic and practical career preparation education program by checking the differences among core competency of collegiate and career variables. In order to do that, the core competence of collegiate was identified through Korea collegiate essential skills assessment(K-CESA), and the survey results about career preparation behavior, career decision-making self efficacy and career barriers were collected. And then the data were compared and analyzed to differentiate relationships among core competency of collegiate and career variables, based on the university types and the locations. The data were analyzed by ANOVAs and t-tests using the SPSS 21.0 program. According to the analysis, firstly, there is a difference in the level of collegiate essential skills depending on the characteristics of schools. Secondly, the students at metropolitan four-year universities feel more difficulties primarily in the variable of career barriers than the students at local universities and students at colleges. Thirdly, the students of high rank at core competence showed higher career decision-making self-efficacy and career preparation behavior than the students of low rank, and they feel less difficulties in the matter of career barrier. This study shows that in order to support students' career efficiently, it is necessary for each college and university to design career program by considering the core competency and the level of career development of students, instead of providing them with a unified and fractional program.